本文選題：微地震　切入點(diǎn)：壓裂　出處：《石油物探》2017年05期 　論文類型：期刊論文

【摘要】：應(yīng)用水平井H1,H2和H3的微地震、壓裂及地震數(shù)據(jù)綜合分析了四川盆地W地區(qū)下志留統(tǒng)龍馬溪組頁巖儲層特征。由微地震監(jiān)測數(shù)據(jù)分析可知,H1井的壓裂主要以激活先期天然裂縫為主,H2井的壓裂以形成人工壓裂裂縫網(wǎng)絡(luò)為主,H3井的壓裂則以激活先期天然裂縫和人工壓裂裂縫網(wǎng)絡(luò)共同出現(xiàn)為主。分析了有無天然裂縫以及天然裂縫與井筒不同產(chǎn)狀關(guān)系情況下不同的壓裂效果,進(jìn)而評價了3口水平井的壓裂效果,H2井壓裂效果最好,H3井次之,H1井較差。最后,利用神經(jīng)網(wǎng)絡(luò)技術(shù)建立了頁巖四大主控因素(總含氣量、孔隙度、脆性指數(shù)和裂縫密度)地質(zhì)模型,獲得頁巖產(chǎn)能數(shù)據(jù)并將其與具有生產(chǎn)測井?dāng)?shù)據(jù)的H1水平井進(jìn)行了對比,結(jié)合微地震壓裂數(shù)據(jù)對H2井、H3井產(chǎn)能進(jìn)行了預(yù)測,預(yù)測結(jié)果為H2井產(chǎn)能是H3井的2倍,實(shí)際生產(chǎn)測試為2.3倍,吻合性好,頁巖產(chǎn)能剖面優(yōu)化了水平井部署、井軌跡設(shè)計(jì)、壓裂方案參數(shù)以及更好的完井設(shè)計(jì)。
[Abstract]:Using microearthquakes of horizontal well H1H2and H3, Fracturing and seismic data analysis of shale reservoir characteristics of Lower Silurian Longmaxi formation in W area, Sichuan Basin. From the analysis of microseismic monitoring data, we can see that the fracturing of H1 well mainly depends on the activation of pre-natural fractures and the fracturing of H _ 2 well. The fracturing of H3 well mainly formed artificial fracturing fracture network mainly by activating preexisting natural fracture and artificial fracturing fracture network. This paper analyzes whether there are natural fractures and the relationship between natural fractures and different occurrence of wellbore. Different fracturing effects, Furthermore, the fracturing effect of 3 horizontal wells is evaluated. The best fracturing effect of H _ 2 well is that of H _ 3 well. Finally, four main controlling factors (total gas content, porosity) of shale are established by using neural network technology. The brittle index and fracture density) geological model are used to obtain shale productivity data and compare them with H1 horizontal wells with production logging data. Combined with micro-seismic fracturing data, the productivity of H _ 2 well and H _ 3 well is predicted. The prediction results show that the productivity of H 2 well is 2 times that of H3 well, and the actual production test is 2.3 times. The shale productivity profile is optimized for horizontal well deployment, well trajectory design, fracturing parameters and better completion design.
【作者單位】： 成都理工大學(xué)能源學(xué)院;中國石油物探重點(diǎn)實(shí)驗(yàn)室-頁巖氣地球物理研究室;中國石油集團(tuán)川慶鉆探工程有限公司地球物理勘探公司;中國石油集團(tuán)川慶鉆探工程有限公司頁巖氣勘探開發(fā)項(xiàng)目經(jīng)理部;
【基金】：國家科技重大專項(xiàng)“大型油氣田及煤層氣開發(fā)”(2016ZX05023004)資助~~
【分類號】：P631.4;TE37

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